Initially, Killua is introduced as cheeky, cheerful, and full of mischievous ideas. However, he can be quite rude to others, mostly strangers and older people. He is most commonly known for having a sweet tooth; he loves everything sweet and spent almost 200 million Jenny on snacks when he was at the Heavens Arena. His favorite snack is chocolate, specifically Chocolate Balls. However, his ruthlessness and aptitude in killing show the other side of him—deadly, violent, and bloodthirsty…